The Russian state-sponsored APT28 threat group is using a custom variant of the open-source Covenant post-exploitation framework for long-term espionage operations.
That's it. Whenever there's a new version you simply run the command and you can enjoy it. Remember, that you may need to close, reopen the PowerShell session if you have already used the module ...
Before you start the upgrade, make sure to upgrade to the latest available 3.5.x version. This will make sure that you are building against the most recent dependencies of that line. Please take time ...